Encounter of two fish at a junction, as if by magic, one day casual, they met several times.

两条鱼在某个路口相遇后，仿佛被施了魔法，一天不经意，就碰见好几次。

youdao

One day, he had a casual meeting with a pretty girl.

一天，他同一位漂亮女孩有一次偶然的相遇。

youdao

Casual one day, you inadvertently become all my worries.

不经意的某一天，你不经意间成为我全部的心事。

youdao

One day we ran to Green Turtle Cay for a casual lobster salad lunch on the patio of the Green Turtle Club.

BBC: Lobster diving in the Abacos